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ESM-20 High Voltage DC Contactor

Technical product information for engineering review. Request datasheet, samples, pricing, lead time, or a cross-reference recommendation for this part.

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ESM-20 High Voltage DC Contactor

ESM-20 High Voltage DC Contactor

$30.00

ESM-20 High Voltage DC Contactor for engineering selection. Coil 12V DC / 24V DC / 48V DC. 1 Form A (SPST-NO) contact.

Sample, Datasheet & Engineering Support

  • Model: ESM-20
  • Purchase path: Buy sample online
  • Production projects: RFQ recommended for final electrical confirmation.

Download PDF DatasheetRequest Production QuoteSample Store

Submit RFQ FormEmail RFQ for This PartCross Reference

For faster support, include voltage/current, contact form, coil voltage, quantity and application.

SKU: ESM-20 Categories: ,
Model detail

ESM-20 product details, applications and specifications

Use this family for DC power-path control where arc suppression, contact life, coil control and thermal design must be confirmed against the real load profile. The table below summarizes the key selection points; use the model datasheet for dimensions, ratings and ordering confirmation.

ESM-20 High Voltage DC Contactor
High Voltage DC Contactor principle illustration
1Battery / DC bus
2Coil drive
3Main contact chamber
4Load / inverter / charger

Main specifications for RFQ

Public model
ESM-20
Product family
ESM High Voltage DC Contactors, High Voltage DC Contactors
Application voltage
High-voltage DC platform; model-specific rating by datasheet
Current range
Model-specific continuous and making/breaking current
Coil voltage
12V / 24V / custom options depending on series
Auxiliary contact
Available on selected models for state feedback
Mounting
Panel, chassis or busbar integration depending on model
Datasheet
Available as individual PDF for this model
Datasheet-style view

ESM-20 technical data by section

Grouped specification blocks make this model page easier to scan for engineering selection, RFQ review and sample validation.

Electrical ratings

Application voltage
High-voltage DC platform; model-specific rating by datasheet
Current range
Model-specific continuous and making/breaking current
Coil voltage
12V / 24V / custom options depending on series

Contact / output data

Auxiliary contact
Available on selected models for state feedback

Mechanical & mounting

Mounting
Panel, chassis or busbar integration depending on model

Ordering / RFQ notes

  • Confirm exact ordering code, coil voltage, contact form and termination style before purchase.
  • Share load voltage/current, load type, duty cycle, ambient temperature and isolation requirement in RFQ.
  • Use the linked PDF datasheet for package drawing, dimensions and final rating limits.
  • For DC contactors, confirm carry current separately from make/break current, including voltage, load type, polarity, pre-charge and expected electrical life.
  • Follow the datasheet for coil suppression/economizer wiring; do not add external suppression if the model prohibits it.
  • Product family context: High Voltage DC Contactor.
Engineering selection notes

Avoid common specification mistakes

These notes keep product pages useful for engineers while avoiding overclaims. Final ratings remain model- and application-specific.

Carry current is not make/break currentContinuous current, making current and breaking current depend on DC voltage, time constant, polarity, pre-charge strategy and expected electrical life. Use the datasheet limits and RFQ review for the real load profile.
Pre-charge and polarity matterDC-link capacitors usually need a pre-charge path. Many DC contactors are polarity-sensitive for interruption, so bidirectional or reverse-current systems require explicit confirmation.
Follow coil suppression instructionsDo not add external flyback diodes or suppression to internally economized/suppressed contactor coils unless the contactor datasheet approves it; delayed release can reduce interrupt capability.

Typical applications

  • EV battery disconnect and pre-charge systems
  • Charging piles and DC fast charging
  • Energy storage systems
  • Industrial DC power and safety isolation

What to confirm before purchase

  • Voltage, current, load type and safety margin
  • Contact form, coil voltage and drive circuit
  • Mounting, wiring, environmental and compliance requirements
  • Sample validation quantity and production forecast
FAQ

ESM-20 ordering FAQ

These visible answers mirror the FAQ structured data and clarify what buyers should confirm before sample approval or production ordering.

What should be confirmed before ordering ESM-20?

Confirm the exact ordering code, coil or control voltage, contact form or output type, voltage/current rating, mounting style, environmental conditions and validation quantity.

Is a PDF datasheet available for ESM-20?

Yes. The model page links to an individual PDF datasheet for engineering review and RFQ confirmation.

What applications is this product family used for?

EV battery disconnect and pre-charge systems, Charging piles and DC fast charging, Energy storage systems, Industrial DC power and safety isolation.

Recommended next steps

ESM-20 selection actions

Use these internal paths to move from overview to model comparison, datasheet review and RFQ submission.

Download model datasheetReview ratings, package drawing and ordering detailsRequest engineering quoteSend load, voltage, quantity and validation requirementsCompare all modelsBrowse the complete model index and related seriesView ESM High Voltage DC Contactors familyReturn to category guide, comparison and representative modelsFamily catalog PDFOpen the product-family catalog for broader selection

Download ESM-20 Datasheet Request quote for this model Compare all models

English engineering resources

Datasheet, catalog and RFQ support

Download the original source datasheet when available; otherwise use the checked generated English datasheet, family catalog, or RFQ path.

Download English Datasheet Family Catalog Complete Catalog Request Engineering Quote

Original source PDFs are preferred when available. Generated English PDFs are used only when no original source PDF is found; final ratings, drawings and application suitability are confirmed by RFQ.

Description

ESM-20 High Voltage DC Contactor for engineering selection. Coil 12V DC / 24V DC / 48V DC. 1 Form A (SPST-NO) contact. Values are organized from the professional datasheet for engineering pre-selection. Confirm final switching load, insulation and footprint before order.

SeriesESM
WithstandSee datasheet
Coil12V DC / 24V DC / 48V DC
Contact1 Form A (SPST-NO)
Download PDF DatasheetRequest Engineering RFQ

Technical specifications

Rated Coil Voltage (Us) 12V DC / 24V DC / 48V DC
Operating Voltage Range ±20%Us
Max Pull-in Voltage 9.6Vmax / 19.2Vmax / 38Vmax
Min Drop-out Voltage 1.2Vmin / 2.4Vmin / 4.8Vmin
Coil Power 2.6W
Contact Form 1 Form A (SPST-NO)
Rated Load Current 20 A
Mechanical Life 3×10^5 Ops
Max Switching Voltage 1500V DC
Max Breaking Current 200A(1000V DC), 1 operation
Short-time Withstand Current 30A: 60min; 40A: 20min; 80A: 30s
Contact Resistance ≤5 mΩ
Electrical Life
Operate Time (rated voltage) ≤30 ms
Release Time (rated voltage) ≤10 ms
Insulation Resistance 1000 (1500VDC)
Shock
Vibration 10Hz~500Hz 49 m/s²
Operating Temperature -40~+85℃
Operating Humidity 5%~85%RH
Load Terminal internal thread
Weight 150 g

Selection notes

  • Separate switching voltage from dielectric/breakdown withstand voltage.
  • Check contact form, coil drive and PCB/package outline before design-in.
  • For HRM modules, confirm terminal wiring and panel/cabinet installation requirements.

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